Dough Transfer Roller Oiling for Adhesion Reduction
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Solution Overview
Problem
Dough pieces tend to stick to the discharge roller in existing transfer devices, especially when made of soft, sticky dough, impairing the reliable functioning of the transfer process.
Innovation Solution
An oiling device with ultrasonic atomization or oil spray nozzles is used to reduce adhesion by applying oil to the ejector roller, allowing for easier detachment and cleaning, and the ejector roller can be removed for maintenance and operation flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a scraper is used to support detachment of dough piece from ejector roller, then the detachment process is improved, but the dough piece still tends to stick to the discharge roller especially with soft sticky dough
Solution Approach 1:
An oiling device is introduced as an intermediary substance (oil) between the dough piece and the ejector roller surface. The oil forms a lubricating film that prevents direct adhesion between the sticky dough and the roller surface, enabling reliable detachment even with soft, sticky dough varieties.
Solution Approach 2:
The surface properties of the ejector roller are changed by applying oil, which modifies the friction and adhesion parameters between the roller surface and the dough piece. This parameter change transforms the surface from adhesive to non-adhesive, solving the sticking problem.
2Reliability
If an oiling device is used to prevent dough sticking, then the reliability of transfer is improved, but the device complexity increases
Solution Approach 1:
The oiling device is designed to automatically apply oil to the ejector roller during operation, eliminating the need for manual intervention. The system serves itself by continuously maintaining the non-adhesive surface condition through automated oil distribution.
Solution Approach 2:
The oiling device serves multiple functions: it prevents dough sticking, facilitates easier cleaning of the roller, and can be integrated with the existing scraper system. This multi-functionality justifies the added complexity by providing multiple benefits from a single addition.
3Ease of repair
If the ejector roller is made removable for cleaning and maintenance, then the ease of repair is improved, but the device complexity increases
Solution Approach 1:
The ejector roller is segmented from the main transfer device structure, allowing it to be removed independently for cleaning and maintenance. This segmentation enables the roller to be serviced separately without disassembling the entire transfer device, simplifying maintenance procedures.
Solution Approach 2:
The ejector roller transitions from a fixed component to a movable, removable component. This dynamic design allows the roller to be easily inserted and removed from the device, facilitating maintenance while maintaining operational functionality when installed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The oiling device effectively prevents dough sticking, facilitates cleaning, and ensures smooth operation, particularly with soft dough, by creating a non-adhesive surface on the ejector roller and allowing for easy maintenance and operation with larger dough portions.
Implementation Method 1
An oiling device (9) is provided above the ejection roller (7), which oils the outer surface (M) of the ejection roller (7) in order to reduce adhesion of the dough (T) to the ejection roller (7)
Implementation Method 2
The oiling device (9) can have a unit with which an oil mist is generated by means of ultrasonic atomization, which mist is deposited on the lateral surface of the ejection roller (7)
Data Source
Figure 1
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AI summary
A transfer device for a dough piece for transferring the dough piece from a first processing station to a next one, in particular from a dough portioning device to a dough piece forming device, comprises - a rotating driven discharge roller (7) for releasing the dough piece (TG) from the first processing station (1), - a scraper (8) associated with the discharge roller (7) to assist in releasing the dough piece (TG) from the discharge roller (7), and - an oiling device (9) associated with the discharge roller (7) for applying oil to the outer surface (M) of the discharge roller (7).